Title:
Microstructure of Concrete from a Crack-Free Structure Designed to Last a Thousand Years
Author(s):
J. Asselanis and P. K. Mehta
Publication:
Symposium Paper
Volume:
202
Issue:
Appears on pages(s):
349-358
Keywords:
cracking; high-volume fly ash concrete; mixture design;
petrography; raft foundation
DOI:
10.14359/10793
Date:
8/1/2001
Abstract:
A petrographic examination on a companion test slab that was cast and cured under the same conditions as a massive raft foundation was performed to gain insight into the observed crack-free nature of the concrete. The foundation was made of a high-volume fly ash concrete mixture designed to last a thousand years. The absence of cracking is attributed to a homogenous microstructure of the high-volume fly ash system and close attention to the selection of concrete materials, mixture proportioning, and curing.